<html><body><div style="color:#000; background-color:#fff; font-family:tahoma, new york, times, serif;font-size:12pt"><div style="RIGHT: auto"><SPAN style="RIGHT: auto">Hi Alan,</SPAN></div>
<div style="FONT-SIZE: 16px; FONT-FAMILY: tahoma, new york, times, serif; RIGHT: auto; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN style="RIGHT: auto">After some more thought, I have changed my mind about bicycle brakes. The problem is the caliper has a rather large piston area. This gives you better brake force, but it would hurt you when you put water pressure against it. You want a small piston like a hydraulic clutch in a car. I would use the clutch parts because they would also be aluminum and much tougher. You would need to remove the piston and machine an o-ring glove because the normal seal is designed to push in one direction only.</SPAN></div>
<div style="FONT-SIZE: 16px; FONT-FAMILY: tahoma, new york, times, serif; RIGHT: auto; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN style="RIGHT: auto">Hank<VAR id=yui-ie-cursor></VAR></SPAN><BR></div>
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<DIV class=hr style="FONT-SIZE: 0px; BORDER-TOP: #ccc 1px solid; HEIGHT: 0px; BORDER-RIGHT: #ccc 1px solid; BORDER-BOTTOM: #ccc 1px solid; PADDING-BOTTOM: 0px; PADDING-TOP: 0px; PADDING-LEFT: 0px; MARGIN: 5px 0px; BORDER-LEFT: #ccc 1px solid; LINE-HEIGHT: 0; PADDING-RIGHT: 0px" readonly="true" contenteditable="false"></DIV><FONT size=2 face=Arial><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> hank pronk <hanker_20032000@yahoo.ca><BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Thursday, September 19, 2013 4:21:36 AM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [PSUBS-MAILIST] hydraulics<BR></FONT></DIV>
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<DIV><SPAN>H Alan,</SPAN></DIV>
<DIV style="FONT-SIZE: 16px; FONT-FAMILY: tahoma, new york, times, serif; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN>Bicycle brakes would probably work quite well because they are made from very good material. </SPAN></DIV>
<DIV style="FONT-SIZE: 16px; FONT-FAMILY: tahoma, new york, times, serif; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN>Hank<VAR id=yiv7503602762yui-ie-cursor></VAR></SPAN></DIV>
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<DIV class=yiv7503602762hr style="FONT-SIZE: 0px; BORDER-TOP: #ccc 1px solid; HEIGHT: 0px; BORDER-RIGHT: #ccc 1px solid; BORDER-BOTTOM: #ccc 1px solid; PADDING-BOTTOM: 0px; PADDING-TOP: 0px; PADDING-LEFT: 0px; MARGIN: 5px 0px; BORDER-LEFT: #ccc 1px solid; LINE-HEIGHT: 0; PADDING-RIGHT: 0px"></DIV><FONT size=2 face=Arial><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> Alan <alanlindsayjames@yahoo.com><BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> Personal Submersibles General Discussion <personal_submersibles@psubs.org> <BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Wednesday, September 18, 2013 11:55:49 PM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [PSUBS-MAILIST] hydraulics<BR></FONT></DIV>
<DIV class=yiv7503602762y_msg_container><BR>Hi Brian,<BR>I've wondered about this also.<BR>I was looking at the hydraulic brakes they have on bicycles now days &<BR>wondering if you could adapt them for functions like releasing emergency<BR>bouys or similar. The manual hydraulics they have on boats, like steering units<BR>are pretty expensive. Would be good to find something of suitable material<BR>off the shelf hat could be used.<BR>Alan<BR>.<BR>Sent from my iPad<BR><BR>On 16/09/2013, at 5:28 AM, "brian" <<A href="mailto:brian@ojaivalleybeefarm.com" rel=nofollow target=_blank ymailto="mailto:brian@ojaivalleybeefarm.com">brian@ojaivalleybeefarm.com</A>> wrote:<BR><BR>> I wonder if those human powered hydraulics could have an application for our boats, like the cats in the America's cup.<BR>> <BR>> Brian<BR>> _______________________________________________<BR>> Personal_Submersibles mailing list<BR>> <A
href="mailto:Personal_Submersibles@psubs.org" rel=nofollow target=_blank ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</A><BR>> <A href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" rel=nofollow target=_blank>http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</A><BR><BR>_______________________________________________<BR>Personal_Submersibles mailing list<BR><A href="mailto:Personal_Submersibles@psubs.org" rel=nofollow target=_blank ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</A><BR><A href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" rel=nofollow target=_blank>http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</A><BR><BR><BR></DIV></DIV></DIV></DIV></DIV></DIV><BR><BR></DIV></DIV></DIV></div></body></html>